The Duchess of Sussex is seen wearing the same dress she wore the day before her 2018 wedding. Megan Markle's Trooping the Color outfit looks familiar!

The 40-year-old Duchess of Sussex happily entertained some of the young royals backstage at Buckingham Palace on Thursday and wore dresses from another special day. Megan's navy blue open-shoulder dress looked the same.

Megan was outfitted with a Stephen Jones straw hat with a dramatic brim and a large sea band that flips up on the opposite side for the second round of the outfit. She added a pair of tiered earrings and a gold ring, as seen in this close-up photo with children Zara Tyndall, Mia, 8, and Lena, 3, and daughter Peter Phillips, Savannah, 11.

The mother-of-two styled her hair in soft waves, the same style she had when she stepped out in that dress four years ago. There, the former actress shone as she stayed in St George's Chapel at the Cliveden House Hotel with her mother, Doria Ragland, the night before their wedding at Windsor Castle.

Fast forward to the present and Megan is the third woman in her family to wear a Royal Queen Elizabeth Platinum Jubilee gown at this year's Trooping the Color.

Camilla, Duchess of Cornwall, who received the same style from a favorite ensemble, opted for a blue dress with a striped coat by Bruce Oldfield, which she wore at Royal Ascot last June.

Previously, the Queen announced that only senior working members of the royal family would be included in the balcony view. Harry and Megan retired from royal duties in January 2020 and have since moved to Montecito.

Harry and Megan are expected to reappear at the National Thanksgiving Service at St Paul's Cathedral on Friday.